CN214007654U

CN214007654U - Splicing high-strength steel pipe for hydraulic cylinder

Info

Publication number: CN214007654U
Application number: CN202022528548.7U
Authority: CN
Inventors: 支向军
Original assignee: Wuxi Jiangnan High Precision Cold-Drawn Pipe Co ltd
Current assignee: Wuxi Jiangnan High Precision Cold-Drawn Pipe Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-20
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a splicable high-strength steel pipe for a hydraulic cylinder; the method is characterized in that: the device comprises a plurality of branch pipes which are spliced with each other, flange mechanisms arranged at two ends of the branch pipes, a connecting mechanism for connecting adjacent branch pipes, a reinforcing piece for supporting the branch pipes and a connecting piece arranged on the reinforcing piece in a penetrating way; the connecting mechanism is arranged on the flange mechanism adjacent to the branch pipe; the reinforcing pieces are arranged around the branch pipes in parallel; the connecting piece is connected between the flange mechanisms around the branch pipe. The problems that an additional mounting bracket is needed, a long-stroke hydraulic cylinder is difficult to mount and the like in the prior art are solved.

Description

Splicing high-strength steel pipe for hydraulic cylinder

Technical Field

The utility model relates to a pneumatic cylinder steel pipe, concretely relates to high strength steel pipe for pneumatic cylinder that can splice.

Background

Generally, in the machine manufacturing industry, hydraulic transmission has become an indispensable technology and is commonly applied to various mechanical equipment. The hydraulic cylinder is the most important executive component in the hydraulic transmission system, and converts hydraulic energy into mechanical energy to realize linear reciprocating motion. The hydraulic cylinder has simple structure, flexible configuration and convenient use and maintenance, so the hydraulic cylinder is widely applied.

The hydraulic cylinder used on large elbow pushing machine equipment, large hydro junction hydraulic hoist equipment, special ship equipment, large petroleum equipment, large metallurgical equipment and other special equipment in industries requires the hydraulic cylinder to have an ultra-long working stroke due to the use characteristics of the hydraulic cylinder, and has the advantages of stable operation, no crawling, good sealing performance, high response speed, large output force, simple structure, convenience in maintenance and the like.

For some special equipment, the long-stroke hydraulic cylinder needs to be installed at some special installation positions, so that the long-stroke hydraulic cylinder is difficult to install at the right position, and how to solve the problem becomes very important.

In the existing scheme, a support is arranged on equipment to enlarge the installation range of a long-stroke hydraulic cylinder or a small-size long-stroke hydraulic cylinder is selected. Such a solution has the following problems: (1) an additional mounting bracket is needed, and the long-stroke hydraulic cylinder is difficult to mount.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model discloses a high strength steel pipe for pneumatic cylinder that can splice to need extra installing support among the solution prior art, long stroke pneumatic cylinder installation difficulty scheduling problem.

The utility model discloses the technical scheme who adopts as follows:

a splicable high-strength steel pipe for a hydraulic cylinder;

the device comprises a plurality of branch pipes which are spliced with each other, flange mechanisms arranged at two ends of the branch pipes, a connecting mechanism for connecting adjacent branch pipes, a reinforcing piece for supporting the branch pipes and a connecting piece arranged on the reinforcing piece in a penetrating way; the connecting mechanism is arranged on the flange mechanism adjacent to the branch pipe; the reinforcing pieces are arranged around the branch pipes in parallel; the connecting piece is connected between the flange mechanisms around the branch pipe.

The further technical scheme is as follows: a boss is arranged around one end of the branch pipe; a groove is formed around the other end of the branch pipe; a first conical surface is arranged around one end of the boss close to the groove; a second conical surface is arranged around one end, far away from the boss, in the groove; a sealing element is arranged around the first conical surface; the lug boss is embedded into the groove of the adjacent branch pipe; the sealing element is attached to the second conical surface; the lug boss is attached to the groove.

The further technical scheme is as follows: first threads are respectively formed on two sides of one end, far away from the first conical surface, of the boss; second threads are respectively formed on two sides of one end, far away from the second conical surface, of the groove; the first thread is in threaded engagement with the second thread.

The further technical scheme is as follows: the flange mechanism comprises a first flange arranged at one end of the branch pipe and a second flange arranged at the other end of the branch pipe; the connecting mechanism comprises a first bolt and a first nut which is in threaded connection with the first bolt; the first bolts are respectively arranged on the first flange and the second flange on the adjacent branch pipes in a penetrating way; the first nut compresses the second flange on the adjacent branch pipe.

The further technical scheme is as follows: taper holes are formed in the first flange in parallel; conical grooves are arranged in the conical holes in parallel; a frustum embedded in the taper hole is arranged around the first bolt; the frustum is provided with conical blocks in parallel; the cone block is embedded in the cone groove.

The further technical scheme is as follows: an opening is formed in one end, close to the branch pipe, of the reinforcing piece; one end of the reinforcing piece, which is far away from the branch pipe, is provided with a connecting piece; the reinforcing piece is also provided with a limiting piece for limiting the opening to open; the connecting piece is arranged on the connecting piece in a penetrating way; the limiting piece is arranged on the reinforcing piece in a penetrating mode and far away from the opening.

The further technical scheme is as follows: the limiting piece comprises a second bolt and a second nut which is connected to the second bolt in a threaded mode; the second bolt penetrates through the reinforcing piece; the second nut compresses the reinforcement.

The further technical scheme is as follows: the connecting piece comprises a rod body penetrating through the reinforcing piece and a third nut in threaded connection with the rod body; and the third nut compresses the flange mechanism.

The utility model has the advantages as follows: the utility model discloses a but high strength steel pipe for pneumatic cylinder that splices adopts a plurality of minutes pipes of mutual concatenation. The flange mechanisms arranged on the adjacent branch pipes by adopting the connecting mechanisms are connected with the adjacent branch pipes by adopting the connecting mechanisms. The high-strength steel pipe for the hydraulic cylinder that can splice has brought following effect: (1) the boss extrudes the sealing space, and the sealing space pushes the boss outwards so that the first thread and the second thread can be tightly matched with each other, and adjacent branch pipes can be firmly connected; (2) the adjacent branch pipes can be firmly connected through the connecting mechanism and the flange mechanism, and the first bolt is prevented from loosening through the conical block embedded into the conical groove; (3) the lengths of the steel pipes can be adjusted according to the requirements of the hydraulic cylinder by splicing different numbers of adjacent branch pipes; (4) the expansion of the opening can be avoided through the limiting piece, so that the reinforcing piece can always support the branch pipe; (5) the reinforcing piece can be fixed through the rod body, so that the reinforcing piece is prevented from loosening; (6) the spliced high-strength steel pipe for the hydraulic cylinder is split into the plurality of branch pipes, and the branch pipes are assembled at the installation position of equipment, so that the long-stroke hydraulic cylinder is convenient to install.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of fig. 1 at B.

Fig. 4 is an enlarged view of fig. 1 at C.

In the figure: 1. pipe distribution; 11. a boss; 12. a groove; 13. a first conical surface; 14. a second tapered surface; 15. a seal member; 16. a first thread; 17. a second thread; 2. a flange mechanism; 21. a first flange; 22. a second flange; 23. a taper hole; 24. a conical groove; 3. a connecting mechanism; 31. a first bolt; 32. a first nut; 33. a frustum; 34. a conical block; 4. a reinforcement; 41. an opening; 42. connecting sheets; 43. a limiting member; 44. a second bolt; 45. a second nut; 5. a connecting member; 51. a rod body; 52. and a third nut.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is an enlarged view of a portion a in fig. 1. Fig. 3 is an enlarged view of fig. 1 at B. Fig. 4 is an enlarged view of fig. 1 at C. With reference to fig. 1, 2, 3 and 4, the utility model discloses a splicing high-strength steel pipe for hydraulic cylinder. The direction of X in the figure does the utility model discloses structure schematic's upper end, the direction of Y in the figure does the utility model discloses structure schematic's right-hand member. The spliced high-strength steel pipe for the hydraulic cylinder comprises a plurality of branch pipes 1 which are spliced with each other, flange mechanisms 2 arranged at two ends of the branch pipes 1, connecting mechanisms 3 for connecting the adjacent branch pipes 1, a reinforcing part 4 for supporting the branch pipes 1 and a connecting part 5 arranged on the reinforcing part 4 in a penetrating mode. The connecting mechanism 3 is arranged on the flange mechanism 2 of the adjacent branch pipe 1. The reinforcing members 4 are juxtaposed around the branch pipes 1. The connecting piece 5 is connected between the flange means 2 around the branch pipe 1.

A boss 11 is provided around one end of the branched pipe 1. A groove 12 is arranged around the other end of the branch pipe 1. A first conical surface 13 is formed around one end of the boss 11 close to the groove 12. A second tapered surface 14 is provided around the end of the recess 12 remote from the boss 11. A seal 15 is provided around the first tapered surface 13. The boss 11 is embedded in the groove 12 of the adjacent branch pipe 1. The seal 15 abuts the second conical surface 14. The boss 11 abuts the recess 12.

Preferably, the sealing member 15 is a rubber sealing ring. Preferably, the boss 11 is annular. Preferably, the groove 12 is annular. The branch pipes 1 are spliced in parallel in the left and right directions. The boss 11 is disposed around the right end of the branched pipe 1. A groove 12 opens around the left end of the branch pipe 1. A first conical surface 13 is opened around the right end of the boss 11. A second tapered surface 14 opens around the right end in the recess 12. A sealing member 15 is provided around the left end of the first tapered surface 13. The inner end of the sealing member 15 is connected to the first tapered surface 13. The outer end of the seal 15 abuts the second conical surface 14.

First threads 16 are respectively arranged on two sides of one end, far away from the first conical surface 13, of the boss 11. Second threads 17 are respectively arranged on two sides of one end of the groove 12 away from the second conical surface 14. The first thread 16 and the second thread 17 are mutually screw-engaged.

The first screw 16 is opened at both sides of the left end of the boss 11. The second screw 17 is opened at both sides of the left end in the groove 12. The boss 11 is embedded into the groove 12 of the adjacent branch pipe 1, the adjacent branch pipe 1 is screwed, and the first thread 16 and the second thread 17 are in threaded fit with each other.

When the boss 11 is inserted into the groove 12 of an adjacent branch pipe 1, the outer surface of the boss 11 is fitted to the inner surface of the groove 12. The sealing member 15 is attached to the second tapered surface 14, the sealing member 15 seals the groove 12, and the sealing member 15 forms a sealed space in the groove 12. Screwing the adjacent branch pipe 1 to ensure that the first thread 16 and the second thread 17 are mutually matched in a threaded manner, and the boss 11 is continuously embedded into the groove 12 of the adjacent branch pipe 1. The boss 11 extrudes the sealing space, and the sealing space pushes the boss 11 outwards, so that the first thread 16 and the second thread 17 can be tightly matched with each other, and the adjacent branched pipes 1 can be firmly connected.

The flange mechanism 2 includes a first flange 21 provided at one end of the branched pipe 1 and a second flange 22 provided at the other end of the branched pipe 1. The connecting mechanism 3 includes a first bolt 31 and a first nut 32 screwed on the first bolt 31. The first bolts 31 are respectively arranged on the first flange 21 and the second flange 22 of the adjacent branch pipes 1 in a penetrating way. The first nut 32 presses the second flange 22 on the adjacent branch 1.

The first flange 21 is provided at the left end of the branched pipe 1. The second flange 22 is provided at the right end of the branched pipe 1. The first bolt 31 passes through the first flange 21 and the second flange 22 in the left-right direction in this order. The first nut 32 is screwed to the left end of the first bolt 31. The first bolt 31 presses the right surface of the first flange 21. The first nut 32 is pressed against the left surface of the second flange 22.

The first flange 21 is provided with taper holes 23 in parallel. Taper grooves 24 are arranged in the taper holes 23 in parallel. A frustum 33 that fits into the tapered bore 23 is provided around the first bolt 31. The conical blocks 34 are arranged on the conical platforms 33 in parallel. The cone block 34 is embedded in the cone groove 24.

Tapered holes 23 are formed in parallel around the right surface of the first flange 21. The tapered grooves 24 are formed in parallel around the inner surface of the tapered hole 23 in the left-right direction. A frustum 33 is provided at the right end of the first bolt 31. The frustum 33 is provided around the outer surface of the frustum 33 in the left-right direction.

When the first bolt 31 passes through the first flange 21, the frustum 33 is inserted into the taper hole 23, and the taper block 34 is inserted into the taper groove 24. The adjacent branch pipes 1 can be firmly connected through the connecting mechanism 3 and the flange mechanism 2. By the engagement of the conical block 34 in the conical groove 24, loosening of the first screw 31 is avoided.

Through splicing the adjacent branched pipes 1 with different quantities, the length of the steel pipe can be adjusted according to the requirements of the hydraulic cylinder.

An opening 41 is opened at one end of the reinforcing member 4 close to the branch pipe 1. The end of the reinforcement 4 remote from the branch 1 is provided with a connecting piece 42. The reinforcing member 4 is also provided with a restricting member 43 that restricts the opening 41 from expanding. The connecting piece 5 is arranged on the connecting piece 42 in a penetrating way. The restricting member 43 is pierced at a position on the reinforcing member 4 away from the opening 41.

The restricting member 43 includes a second bolt 44 and a second nut 45 screwed to the second bolt 44. The second bolt 44 is inserted through the reinforcement 4. The second nut 45 compresses the reinforcement 4.

The reinforcing pieces 4 are sleeved on the outer surface of the branch pipe 1 in parallel. An opening 41 opens at the inner end of the reinforcement 4. A connecting piece 42 is provided at the outer end of the reinforcement 4. The second bolt 44 is inserted through the reinforcement 4 in the right-left direction. After the second nut 45 is tightened, the second nut 45 presses the reinforcing member 4.

The reinforcing member 4 has a structure reinforcing effect on the branch pipe 1, and after the spliced high-strength steel pipe for the hydraulic cylinder is used for a long time, the opening 41 can be expanded by the outward expanding force of the branch pipe 1. The expansion of the opening 41 can be avoided by the limiting element 43, so that the reinforcing element 4 can always support the partial tube 1.

The connecting member 5 includes a rod body 51 inserted through the reinforcing member 4 and a third nut 52 screwed on the rod body 51. The third nut 52 presses the flange mechanism 2.

The rod body 51 passes through the connecting piece 42 in the left-right direction. The third nuts 52 are respectively provided in parallel at the left and right ends of the rod body 51. The third nut 52 compresses the first flange 21 and the second flange 22, respectively. The rod body 51 can be fixed between the first flange 21 and the second flange 22 by means of a third nut 52. The rod body 51 and the connecting piece 42 adopt a welding connection mode. The reinforcing part 4 can be fixed through the rod body 51, and looseness of the reinforcing part 4 is avoided.

Through high strength steel pipe split into a plurality of minutes 1 for the pneumatic cylinder that will splice, assemble at the mounted position of equipment, made things convenient for the installation of long stroke pneumatic cylinder.

In the present embodiment, the seal 15 is described as a rubber seal, but the present invention is not limited thereto, and may be another seal within a range capable of functioning.

In the present specification, terms such as "ring" are used, and these terms are not exactly "ring" and may be in a state of "substantially ring" within a range in which the functions thereof can be exhibited.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims

1. The utility model provides a high strength steel pipe for pneumatic cylinder that can splice which characterized in that: the device comprises a plurality of branch pipes (1) which are spliced with each other, flange mechanisms (2) arranged at two ends of each branch pipe (1), a connecting mechanism (3) for connecting adjacent branch pipes (1), a reinforcing piece (4) for supporting the branch pipes (1) and a connecting piece (5) arranged on the reinforcing piece (4) in a penetrating way; the connecting mechanism (3) is arranged on the flange mechanism (2) of the adjacent branch pipe (1); the reinforcing pieces (4) are arranged around the branch pipes (1) in parallel; the connecting piece (5) is connected between the flange mechanisms (2) around the branch pipe (1).

2. The splittable high strength steel tube for a hydraulic cylinder according to claim 1, wherein: a boss (11) is arranged around one end of the branch pipe (1); a groove (12) is formed around the other end of the branch pipe (1); a first conical surface (13) is arranged around one end of the boss (11) close to the groove (12); a second conical surface (14) is arranged around one end, far away from the boss (11), in the groove (12); a sealing element (15) is arranged around the first conical surface (13); the lug boss (11) is embedded into the groove (12) of the adjacent branch pipe (1); the seal (15) is attached to the second conical surface (14); the boss (11) is attached to the groove (12).

3. The splittable high strength steel tube for a hydraulic cylinder according to claim 2, wherein: first threads (16) are respectively arranged on two sides of one end, far away from the first conical surface (13), of the boss (11); second threads (17) are respectively arranged on two sides of one end, far away from the second conical surface (14), of the groove (12); the first thread (16) and the second thread (17) are mutually in threaded fit.

4. The splittable high strength steel tube for a hydraulic cylinder according to claim 1, wherein: the flange mechanism (2) comprises a first flange (21) arranged at one end of the branch pipe (1) and a second flange (22) arranged at the other end of the branch pipe (1); the connecting mechanism (3) comprises a first bolt (31) and a first nut (32) which is screwed on the first bolt (31); the first bolts (31) are respectively arranged on the first flange (21) and the second flange (22) of the adjacent branch pipe (1) in a penetrating manner; the first nut (32) presses the second flange (22) on the adjacent branch pipe (1).

5. The spliceable high-strength steel pipe for hydraulic cylinders according to claim 4, wherein: taper holes (23) are formed in the first flange (21) in parallel; conical grooves (24) are arranged in the conical holes (23) in parallel; a frustum (33) embedded in the taper hole (23) is arranged around the first bolt (31); the frustum (33) is provided with conical blocks (34) in parallel; the conical block (34) is embedded in the conical groove (24).

6. The splittable high strength steel tube for a hydraulic cylinder according to claim 1, wherein: an opening (41) is formed in one end, close to the branch pipe (1), of the reinforcing piece (4); one end of the reinforcing piece (4) far away from the branch pipe (1) is provided with a connecting piece (42); the reinforcing piece (4) is also provided with a limiting piece (43) for limiting the opening (41) to open; the connecting piece (5) is arranged on the connecting piece (42) in a penetrating way; the limiting piece (43) is arranged on the reinforcing piece (4) in a penetrating mode and is far away from the opening (41).

7. The spliceable high-strength steel pipe for hydraulic cylinders according to claim 6, wherein: the limiting piece (43) comprises a second bolt (44) and a second nut (45) which is screwed on the second bolt (44); the second bolt (44) is arranged on the reinforcing piece (4) in a penetrating way; the second nut (45) presses the reinforcement (4).

8. The splittable high strength steel tube for a hydraulic cylinder according to claim 1, wherein: the connecting piece (5) comprises a rod body (51) arranged on the reinforcing piece (4) in a penetrating mode and a third nut (52) connected to the rod body (51) in a threaded mode; the third nut (52) presses the flange mechanism (2).